Rope-clamp.



R. W. LEE.

ROPE CLAMP. APPLICATION FILED OCT 3|, I914- Patented Dec. 18, 1917..

Wiineaaes v more ST TE PATENT orator.

ROBERT w. LEE, or BROOKLYN, 'NlilW YORK, ASSIGNOR or ONE-FOURTH T0 FREDERICK C. PITCHEB AND ONErI-IALF T0 ALBERT G.. STILLWELL, BOTH 0F YORK, ,AND ONE-:EOURTH TOCARL S.",$TERN, OF NEW YORK, N. Y.

BROOKLYN, NEW

To all wkom z't may concern.

zen'of the United States, and resident of the borough of Brooklyn, in the city and State of New York, have invented a new and useful Improvement in Rope-Clamps, of which the following is a specification. I u i i This invention relates to rope-clamps, With the object in view of providing a device of this character which" will freely permit the passage of a flexible cord when drawn through in one direction, but automatically clamp the cord against movement When attempted to be drawn in the reverse direction. I

Another objectis to provide means for manually operating the pulley so as'to permit the cord to move in the inhibiteddirection.

A further object is to provide such a device which is very simple in its construction, and \Vl11Cl1- contains certain improvements in its form and construction and 111 thearrangement of parts,whereby theabove 'namedand other objects maybe efiectively carried out.

A practical embodiment of the invention is represented in'the accompanying drawings, in which, I I Figure 1 represents aside elevation of 'thewvhole. device with the cord clamped therein. i I I :Fig. 2 represent a front elevation of the same. v

Fig. 3 represents aside elevation reverse to that shown in Fig.1. V

Fig. 4 represents a. horizontal section taken in the: plane of the'line A- A ofFig. 2, looking in the direction: of'the arrows. -;-Fig. 5 represents a vertical section taken in. the planeof the line B B of Fig.1, looking in tliedirection of the arrows, and V 'l ig'tirepresents a vertical section taken I in the plane of 'theline B.B, Fig. 1, looking in the direction opposite to the arrows showing the movable member in posltio n to release the cord. I .1. v

The device consists of; an outer member whichhas a cylindrical portion, denoted by 1,; provided with a icorrespondinglyshaped bore therethrough. This cylindrical portion I Specificationof Letters Patent. U Applicationfiled October 31, 1914; seriarnb. 369,608. 1

Patented Dec.'1s, 191f7.

is completely circular in form at its, two faces, but has its Wall intermediatethe two faces cut away for about three-quarters of its circumference, thus leaving the Wall solid from'face to face'for only one-quarter of its circumference,as' clearly shown at 2,

in Fig. :5. These cut away portions are denoted by 3 and 4. At'one side of the cylindrical portion 1, this outermember is pro -jectedin reduced cylindrical form as indicated-ate, whichreduced portion, at its extremity'takesthe form'of a-hollow circular-:rim 6. The other end of the oiiter member has an eye 7 secured thereto or integral therewith, in order to provide means for convenientlysupporting the clamp as a whole-in the desired location and position.

.The'device also comprises an inner'memher 8, which consists of a cylindrical body portion adapted to fit within the bore of the member 1, so as to be oscil'latable in a rotary direction therewithin. This body portion of the inner member 8 is completely circular at. itsl'tvvo fae'esybut has its wall intermediate its faces'cutawayfor about half its circumference, thereby leaving only about halfof the wall solid,fas shown'at 9,

Fig. 5. A handle 10 is'providedat one s'ide of the innermemberS for manual'operation thereof'h a It Will be note'd that the reduced portion 5 ofthe outer member projects slightly to one sideof the cylindrical portion 1, so that the rim 6 lies to one side of the cylindrical portion of the inner member 8,01 inother words, is inset-therefrom, instead of in-a direct linethe re'With The's olid wall-2 of thecylindrical portion 1 of the outer meniber may be providedwith a groove or lip 11 atthe edge thereof, for the purpose of accommodating, the fiexible hereinafter described.

cord, as will be When the parts are assembled with the i inner m'ember-withinthe outer member as described, a flexible cord 12 may-be passed through .=the-openings in the Walls of the cylindricalportions 1 and 8'of the outer andiinner members, one end of the cord being also. passedthrough the rim 6. The end of the cord whichis selected to' pass through thez-rim G, is the one Which comes'from 'that side of the inner member 8 which is farthest out of line with the rim 6 which end is shown at the left in Figs. 52 and" 5 and at the right in Fig. 6. This leading of the cord 12"throu'gh the guide rim 6, causes it to :bend sharply about the edge of the wall 9 of the inner member 8, as clearly shown in Fig. 5. p

In operation, it will be seen that when the device is secured by means of its eye 7 in any desired-"position, tension upon theend of the cord which passes-"through the guide rim 6 will rotate the inner member 8 so as to cause the edge of its wall 9 to move away from the lower edge of the wall 2'ofr'th'e outer member, as shown in Fig. 6, thereby leaving a free passage through the device for the cord 12,-and hence permitting the latter to be pulled therethrough at will. As soon, however,as tension is exerted upon the other end of the cord, thereby starting it in the reverse direction, the inner member 8 will ,be correspondingly rotated, thus moving the edge of its wall 9 toward the nearedge of the wall 2 and almost immediately clamping the'cord between these two side edges, as clearly shown in Fig 5. In this position the ,cord will be resting in the groove or lip 11. In case it is desired to permit the cord to slip slightly in the inhibited direction whiletension is thereon, theinner member S may be rotated by the handlelO so as to momentarily release the cord; butas'soon as the operator lets go of the handle 10, the tension on the cord will automatically cause the inner member 8 to rotate in the opposite direction, thereby again clamping the cord as previously described.

" The leading of one end of the cord through the rim 6, so as'to cause it to bend sharply about the clamping edge of the Wall 9 of the inner member, aids in the security fthe-hold and also insures that a reverse strain upon the cord will at onceirotate the inngr member so asto quickly release the cor I It will be understood that various changes may be resorted to in the form, construction and-arrangement of the several parts withoutdeparting from the spirit and scope of my invention, and hence I do not intend to be limited to the specific details herein described except asthey may be set forth in the claims. r r i What I claim is: a

1. 'A device of the character described comprising an outer member having a cylindrical bore therein and a hollow cylindrical guide rim, the wall of said member being cut awayfor substantially three quarters the circumference of the bore to form radial edges, a hollow cylindrical inner member rotatably fitted in 'sai'd'bore, the wall of said inner member being cut away for substantially one half of its circumference to form radial edges to'coact with aforesaid radial edges of the outer member, the said cutaway portions being disposed sothat' a flexibl e cord may be passed transversely across the axis of rotation of saidinner member and between the radial edges of both members andone end of said cord passed through said tiallyth'ree quarters the'ci rcumference 'of'the bore to .form radial edges, =a hollowcylindrical inner member rotatably :fitted in said bore, the wall of said inner member being cut away for substantially one half of its circumference to form radial edges to coact with aforesaid radial edges of the outer member, the saidcutaway portions being disposed *so that a. flexible cord may be passed transversely across the axis of rotation of said inner member andzbe'tween the radial edges of bothmembers and, one end of said cord passed through saidrim, whereby tension on the-other end of the cord will rotate the inner member so as to cause the 80rd tol be gripped between the radial edges 7 of the inner and outer members and tension on the cord passing through the rim will rotate the innerzmemberuso: as tore-lease the cord and permit it to be freely drawn throughthe clamp; 1

e. A device or the character described 1 comprising an outer member having a iciyilinldrlc al bore th'ereintand ahollow 'c.y'lindiriical gulde rim inset therefrom, the wall of said member. being cut away for substantially three quarters the circumference of the bore to form (radialedges, a hollow cylindrical inner member :rotatabl'y fitted in said bore, the wall of said inner member being :cut away forsubstantially one half of its circumference-to form raidli'al' edges to react with aforesaid radial "edges of the outer member, "the said cutaway portions being disposed so that a flexible 'cordflmay' be passed transversely across the axisof rota tion of said inner member and between. the

radial edges of both members an d-one'en'd of'said cord passed. through said rim, whereby tension on tdIG'FOthGI endof the cord-will rotate the inner member so as to'cause the cord to be gripped between the radial edges of the inner and outer members and tension In testimony, that I claim the foregoing on the cord passing through the rim will as my invention, I have signed my name in 10 rotate the inner member so as to release the presence of two Witnesses, this twenty eighth cord and permit it to be freely drawn day of October 1914., 7 through the clamp, and means formed in- ROBERTW; LEE. tegral with the wall of the outer member Witnesses: and diametrically opposite said guide rim F. GEORGE BARRY,

for supporting the clamp. LIDA M. EGBERT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

, Washington, D. 0. 

